Timing device for package-wrapping machines



Oct. 30, 1928. 1,689,404

B. w. QUICK TIMING DEVICE FOR PACKAGE WRAPP ING MACHINES Filed Aug. 1?, i927 Patented Oct. 30, 1928.

UNITED STATES BRUNNIE W. QUICK, OF POUGHKEEPSIE, NEW YORK, ASSIGNOR TO AMERICAN M CHINE & FOUNDRY COMPANY, A CORPORATION PATENT OFFICE.

OF NEW JERSEY.

TIMING DEVICE FOR PACKAGE-WRAPPING MACHINES.

Application filed August 17,1927. Serial No. 213,478.

This invention relates to an improvement in a timing device for package wrapping machines, and its main object is the production of a device for automatically insuring the proper feeding of packages at the turn of an angular pathway along which they are moved on entering the wrapping machine.

In such pathways heretofore, a break in the continuity of packages moving toward the turn of the pathway resulted in damage to packages caught at the turn between a wall of the pathway and the plunger which periodically moves packages from the turn of the pathway into the wrapping. mechanism- The present device obviates' this difiiculty by arresting oncoming packages whenever a break occurs in their continuity until their continuity is restored and then releasing them at the proper time to insure proper engageing package at the turn. With this and other objects not specifically mentioned in view, the

invention consists in certain constructions and combinations which will be hereinafter fully described and then specifically set forth in the claims hereunto appended.

In the accompanying drawings, in which, like characters of reference indicate the same or like parts, Fig. 1 is a side elevation of a device constructed in accordance with the invention; Fig. 2 is an end elevation'of the same; and Fig. 3 is a plan view of the same showing its location in the customary angular pathway.

In carrying the invention into effect, there is provided an angular pathway along which a succession of packages are normally forwarded in continuity toward the turn of said pathway in the usual manner, as by means of a feed belt in constant operation, stop mechanism having a member normally riding inactively on top of the packages but arranged to drop into their path and arrest oncoming packages when a break occurs in their continuity, and means for automatically resetting said member on top of the packages when continuity is restored. These various parts and means may be varied in construction within the scope of the claims, for the specific structure selected to illustrate the invention is but one of numerous possible concrete embodiments of the same. The invenment of the feeding plunger with the lead tion, therefore, is not to be restricted to the precisev details of the structure shown and described. i

Referring to the drawings: it represents one of the forwarded packages, a break having occurred in the continuity of packages moving toward the turn of the angu Way. 5 indicates the reciprocating plunger wh1ch .feeds packages successively into the wrapp ng mechanism, not shown, of the wrapplng machine in connection with which the device is used. 6 indicates one of the ar path- .shafts of the wrapping machine having a by a lever 9 which is fulcrumed on a vertical pivot 11 carried by the base 7. The lever 9 has a long arm 13 to which one end of a spring 12 is attached, the other end of the spring being attached to a hook carried by the base 7. To the rockshaft 6 is secured an arm 14: to which is attached one end of a link 15 con necting said arm with a-trip arm 16 supported by an upright 17 rising from the base 7. The trip arm 16 thus has an oscillating movement in synchronism with the reciprocating movement of the feeding plunger 5. The trip arm 16 normally oscillates idly, and can engage the stop lever 8 only when the latter has dropped into the path of oncoming packages and been moved thereby, against the resistance of the spring 12, to its extreme forward position as indicated by the dotted lines in Figs. 2 and 3.

When a break occurs in the'continuity of the forwarded packages, the stop lever 8, which normally rides inactively on top of the packages, drops into the gap between packcomes the pull of the s ring. As soon as this occurs, however, the hue of packages begins to move a ain, pushing the stop lever ahead of them. lhe raised rear end of the lever 8 is thus moved rearwardly into the range of action of the trip lever 16 which depresses it on its next down stroke, thereby raising the forward end of the lever 8 at the proper time to be in timed relation with the movement of the feeding plunger 5. Immediately upon being lifted out of engagement with the detained package by the trip lever 16, the spring 12 snaps the stop lever 8 back into its normal inactive position on top of the packages where it remains until another break in continuity occurs.

What is claimed is:

1. The combination with an angular pathway along which a succession of packages are normally forwarded in continuity toward the turn of said pathway, stop mechanism having a member normally riding inactively on top of the packages but arranged to drop into their path and arrest oncoming packages when a break occurs in their continuity, and means for automatically resetting said member on top of the packages when continuity is restored.

2. The combination with an angular athway along whi h a succession of pac ages are normally forwarded in continuity-toward the turn of said pathway, stop mechanism having a member normally riding inactively on top of the packages but arranged to, drop into their path and arrest oncoming packages when a break occurs in their continuity, and means for automatically resetting said member on top of the packages when continuity is restored, said stop mechanism including a spring controlling the action of said member when in the path of oncoming packages to insure restoration of package continuity before said means comes into action.

3. The combination with an angular pathway along which a succession of packages are normally forwarded in continuity toward the turn of said pathway,stop mechanism having a member normally riding inactively on the top of the packages but arranged to drop into their path and arrest oncoming packages when a break occurs in their continuity, and means for automatically resetting said member on top of the packages when continuity is restored, said stop mechanism including aspring-controlled lever rockable on a vertical pivot, and said lever carrying a horizontal pivot on which said member is rockably mounted.

' 4. The combination with an angular athway along which a succession of pie ages are normally forwarded in continuity toward the turn of said pathway, stop mechanism having a member normally riding inactively on top of the packages but arranged to drop into their path and arrest oncoming packages when a break occurs in their continuity, and means for automatically resetting said member on top of the packages when continuity is restored, said resetting means including a constantly oscillating arm engagingsaid member only when package conti nuity is restored after a break.

' 5. The combination with an angular pathway along which a succession of packages are normally forwarded in continuity toward the turn of said pathway, stop mechanism having a member normally riding inactively on top of the packages but arranged to drop into their path and arrest oncoming packages when a break occurs in their continuity, and means for automatically resetting said member on top of the packages when continuity is restored, said resetting means including an arm engaging said member only when continuity has been restored after a break, a rockshaft, an arm on said shaft, and a link connecting the shaft arm with the member engaging arm.

In testimony whereof, I have signed my name to this specification.

BRUNNIE W. QUICK. 

